Adobe releases the Ruby on Rails RIA SDK

Adobe is releasing the "Ruby on Rails RIA SDK", and also establishing
an open source project to help Ruby on Rails developers get started
with Adobe Flex. If you're interested, you can participate by joining
the Ruby on Rails RIA SDK mailing list and / or contributing to the
project, currently hosted on Google Code.
http://blogs.adobe.com/mikepotter/2006/09/announcing_the_1.html